Extrusive rock: igneous rock formed from lava that erupted onto earths surface. Intrusive rock: igneous rock that formed when magma hardened beneath earths surface. Porphyritic texture: A rock with a large crystal scattered on the backround of smaller crystals.
5.2 igneous rocks
vocabulary
Extrusive rock: igneous rock formed from lava that erupted onto earths surface.
Intrusive rock: igneous rock that formed when magma hardened beneath earths surface.
Porphyritic texture: A rock with a large crystal scattered on the backround of smaller crystals.
outline
*charicteristics of igneous rock
texture
mineral compisition
*uses of igneous rocks